Welding helmet front opening



FIG. 1 is a perspective view, showing a new design for a welding helmet front opening;

FIG. 2 is a front view of the welding helmet front opening of FIG. 1;

FIG. 3 is a rear view of the welding helmet front opening of FIG. 1;

FIG. 4 is a left side view of the welding helmet front opening of FIG. 1, the right side view being a mirror image thereof;

FIG. 5 is a top view of the welding helmet front opening of FIG. 1;

FIG. 6 is a bottom view of the welding helmet front opening of FIG. 1;

FIG. 7 is a perspective view of a second embodiment thereof;

FIG. 8 is a front view of the welding helmet front opening of FIG. 7;

FIG. 9 is a rear view of the welding helmet front opening of FIG. 7;

FIG. 10 is a left side view of the welding helmet front opening of FIG. 7, the right side view being a mirror image thereof;

FIG. 11 is a top view of the welding helmet front opening of FIG. 7; and,

FIG. 12 is a bottom view of the welding helmet front opening of FIG. 7.

The details shown in broken lines form no part of the claimed design. 

The ornamental design for a welding helmet front opening, as shown and described. 